arch-power: Add character compare instructions

This adds the following instructions.
  * Compare Ranged Byte (cmprb)
  * Compare Equal Byte (cmpeqb)

Change-Id: I12a9135bf302acd741abe27cb557e8e8bba82edc
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/40915
Reviewed-by: Boris Shingarov <shingarov@labware.com>
Maintainer: Boris Shingarov <shingarov@labware.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2 files changed